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FERTILIZERS, ESPECIALLY FOR THE PLANT NUTRITION AND FOR THE PREVENTION AND CURE OF DEFECTIVE DISEASES IN PLANTS
FERTILIZERS, ESPECIALLY FOR THE PLANT NUTRITION AND FOR THE PREVENTION AND CURE OF DEFECTIVE DISEASES IN PLANTS
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机译:化肥,特别是用于植物营养以及植物病害的预防和治疗
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摘要
A fertilizer composition for supplying plants with nutrient iron containing as an active ingredient at least prussiate of the formula IMAGE (I) in which M represents an alkali metal ion, alkaline earth metal ion, heavy metal ion or ammonium ion or a proton, R1, R2, R3 and R4, independently of one another, each represent hydrogen, alkyl, hydroxyalkyl, cycloalkyl, optionally substituted aryl or aralkyl or R1, together with R2, and/or R3, together with R4, represent an alkylene group, a bis-alkylene ether group or a bis-alkylene thioether group or, together with the adjacent nitrogen atom, form an unsaturated heterocyclic ring, or R2 and R4 each represent hydrogen, alkyl or hydroxyalkyl and at the same time R1 and R3 together represent an alkylene group, X represents an alkylene group, hydroxyalkylene group, cycloalkylene group, bis-alkylenecycloalkylene group, bis-alkylene ether group, tris-alkylene diether group, bis-alkylene thioether group or bis-alkyleneamino group, A REPRESENTS 1 OR 2 AND B REPRESENTS 1, 2, 3, OR 4.
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